3L3H

X-ray crystal structure of the F6A mutant of influenza A acid polymerase epitope PA224 bound to murine H2-Db MHC

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	3CC5

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	5.6	293	0.1M citrate, 0.2M ammonium acetate, 25% PEG4000, pH 5.6, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.41	48.98

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 56.068	α = 90
b = 56.068	β = 90
c = 275.12	γ = 90

Symmetry
Space Group	P 43 21 2

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	IMAGE PLATE	RIGAKU RAXIS IV++		2004-04-02	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU	1.51478

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Net I Over Average Sigma (I)	Redundancy	Number Reflections (All)	Number Reflections (Observed)	Observed Criterion Sigma (F)	Observed Criterion Sigma (I)	B (Isotropic) From Wilson Plot
1	2.7	28	98.2	0.091	18.4	4.5	12799	12799	1	1

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.7	2.8	98		0.317	5.1	4.6

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	3CC5	2.7	28	12799	11531	1268	98.89	0.22031	0.22673	0.22031	0.28409	RANDOM	22.889

Temperature Factor Modeling
Anisotropic B[1][1]	Anisotropic B[1][2]	Anisotropic B[1][3]	Anisotropic B[2][2]	Anisotropic B[2][3]	Anisotropic B[3][3]
0.47			0.47		-0.95

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.33
r_dihedral_angle_4_deg	15.879
r_dihedral_angle_3_deg	14.646
r_dihedral_angle_1_deg	4.974
r_angle_refined_deg	0.888
r_scangle_it	0.525
r_scbond_it	0.307
r_nbtor_refined	0.291
r_mcangle_it	0.255
r_nbd_refined	0.165

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.33
r_dihedral_angle_4_deg	15.879
r_dihedral_angle_3_deg	14.646
r_dihedral_angle_1_deg	4.974
r_angle_refined_deg	0.888
r_scangle_it	0.525
r_scbond_it	0.307
r_nbtor_refined	0.291
r_mcangle_it	0.255
r_nbd_refined	0.165
r_symmetry_vdw_refined	0.144
r_mcbond_it	0.141
r_symmetry_hbond_refined	0.136
r_xyhbond_nbd_refined	0.106
r_chiral_restr	0.06
r_bond_refined_d	0.006
r_gen_planes_refined	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3160
Nucleic Acid Atoms
Solvent Atoms	122
Heterogen Atoms

Software

Software
Software Name	Purpose
CrystalClear	data collection
PHASER	phasing
REFMAC	refinement
HKL-2000	data reduction
HKL-2000	data scaling

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.